At a price, of course.
Zomara Khel is a renowned blacksmith who can turn two of the same (non-craftable) rares and use the materials of both to make one of the weapons pristine again. All for the cost of a mere few jeweled wristcuffs.
SAY REPAIR RARE in front of him and he will list what he requires.
The reason why he only takes standard rares is due to mobs having only limited space for mobol, and after all, the craftable rares can be turned in for tps.